Fixes to scope.h for the sake of Boost.Serialization
Fixes to scope.h for the sake of Boost.Serialization

duncanmortimer/ledger,jwakely/ledger,afh/ledger,jwakely/ledger,jwakely/ledger,jwakely/ledger,jwakely/ledger,paulbdavis/ledger,ledger/ledger,afh/ledger,duncanmortimer/ledger,ledger/ledger,duncanmortimer/ledger,afh/ledger,duncanmortimer/ledger,paulbdavis/ledger,ledger/ledger,paulbdavis/ledger,paulbdavis/ledger,paulbdavis/ledger,ledger/ledger,jwakely/ledger,ledger/ledger,jwakely/ledger,duncanmortimer/ledger,afh/ledger,duncanmortimer/ledger,afh/ledger,paulbdavis/ledger,duncanmortimer/ledger,paulbdavis/ledger